At: list quo choice pls 1 1 1 2 1 1 1 2 1 1 1
1. q: 
2. E: q*
q*Prop
3. EquivRel x,y:q*. x E y
4. 
x,y:q*. Dec(x E y)
5. f: q*
6. g: q*
7. g o f = Id
8. f o g = Id
9. h:
10. n,k:. ((g(n)) E (g(k))) 
h(n) = h(k)
11. x: q*
12. x E (g(h(f(x))))
x E ((g o h o f)(x))
By: Reduce 0
Generated subgoals:None
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